Rock Permeability Equipment for Rock Testing Equipment

Rock permeability test is performed to measure the water flow through a rock specimen contained in a Hoek cell and subject to confining pressure.

The typical configuration requires the following items:
• Hoek cell, choose between AX, 1.5”, BX, NX, NQ models
• Permeability end caps, couple of end cap to be fitted on the Hoek cells
• Either a manual or automatic confining pressure system required to maintain a constant pressure during the permeability test.
• A back pressure system to apply a constant pressure to the rock sample positioned in the Hoek cell.

The system can be either manual with an oil / water interface solution or automatic using the standalone Hydromatic testing system. Depending on the back pressure system you select, there can be three main configurations:
• Manual, using an oil / water interface for confining pressure. This configuration consists of a motorized hydraulic pump, a honed piston / spring assembly, a precision test gauge and a cylindrical oil / water interchange vessel in order to apply one back pressure line and leave the second back pressure at the atmospheric pressure.
• Automatic — one back pressure line, using one single HYDROMATIC standalone closed-loop pressure / volume controller that powers one hydraulic pressure line and measures the associated volume change. Used for applying one back pressure line and leaving the second back pressure line at atmospheric pressure.
• Automatic — two back pressure lines, using one double HYDROMATIC standalone closed-loop pressure / volume controller that powers two hydraulic pressure lines and measures the associated volume change. Used for applying two indipendent back pressure lines